I am selling very rare old soviet isodynamic headphones Amfiton TDS-7 in excellent condition. I have two pairs now, so I can let go to one of them.
Asking SOLD (shipping included). Will ship worldwide.
Construction of TDS-7 - traditional isodinamic, have 5 pairs of magnets (FeBa, 45x6x4 mm) and membrane (PET 7...8 microns, 60x45 mm) with aluminium coil (10 microns, 8 turns).
Nominal power....2 mW,
Max. power.......1W (acustic pressure 124 db),